Which theoretical probabilities are equal to 1/3. check all that apply.

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

How many revolutions will a car wheel of diameter 28 in. make over a period of half an hour if the car is traveling at 60 mi/hr? the final answer is supposedly 21,609 but i have no idea how to get that, show work : )